Remove moisture from the tofu using a paper towel, then crumble it finely.
Drain the oil from the tuna using a strainer.
In a bowl, add rice, tofu, tuna, chopped green onion, soy sauce, and sesame oil, then mix well.
Add sesame oil to a pan and lightly stir-fry the rice mixture over medium heat.
Transfer to a bowl and sprinkle toasted sesame seeds on top.